We look at the division of 163998 by 66 
We're looking to find how many times 66 goes into 163998.

Step 1:
If we divide 1 by 66, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 66

Advancing to step 2:
If we divide 16 by 66, we get 0 and a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 66

Step 3:
66 can be fit into 163 2 times, resulting in a remainder of 31.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 132 from 163, we get 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 66

Going ahead to step 4:
If we divide 319 by 66, we get 4 and a remainder of 55.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we subtract 264 from 319, we get 55.
Include the next digit (9) from the dividend after 55, then repeat: 559 / 66

Moving on to step 5:
559 divided by 66 is 8 with a remainder of 31.
Put 8 as the next digit of the answer. 
Result so far: 248.0
If we subtract 528 from 559, we get 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 66

Advancing to step 6:
The number 66 fits into 318 4 times, leaving a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 2484.0
If we subtract 264 from 318, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
If we divide 540 by 66, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 2484.8
Subtract 528 from 540 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
66 can be fit into 120 1 times, resulting in a remainder of 54.
The next digit of our result is 1. 
Result so far: 2484.81
Deduct 66 from 120 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 9:
When dividing 540 by 66, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 2484.818
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
66 goes into 120 1 times with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 2484.8181
Subtracting 66 from 120 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 11:
The number 66 fits into 540 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 2484.81818
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
If we divide 120 by 66, we get 1 and a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 2484.818181
The remainder is 54 after subtracting 66 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
The number 66 fits into 540 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 2484.8181818
Subtract 528 from 540 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
66 can be fit into 120 1 times, resulting in a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 2484.81818181
If we subtract 66 from 120, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final result is 2484.81818181 with a remainder of 5.4e-08.